* a few new error constants
* WLED_O2_ATTR - ask the compiler for stronger optimization of a single function
* WLED_O3_ATTR (WLEDMM) optimize even more
- fixed inconsitencies in size rendering
- fixed palette being wrapped in color by position and color by age modes
- Fixed bug in memory layout: for some unknown reason, if flags come before particles, last flag is sometimes overwritten, changing memory laout seems to fix that
- New color modes in PS Fireworks 1D:
- custom3 slider < 16: lower saturation (check1: single color or multi-color explosions)
- custom3 slider <= 23: full saturation (check1: single color or multi-color explosions)
- custom3 slider > 23: color by speed (check 1 has not effect here)
- custom slider = max: color by age or color by position (depends on check1)
- removed local buffer for ESP8266 in 1D system to save on RAM
- increased particle brightness in PS Impact
- minor tweak in collision binning (might improve speed)
- removed comments and some other unused stuff
- fixed a few compiler wranings
